hydraulic 音标拼音: [hɑɪdr'ɔlɪk]
a . 水力的,水压的
水力的,水压的
hydraulic adj 1 :
moved or operated or effected by liquid (
water or oil );
"
hydraulic erosion "; "
hydraulic brakes "
2 :
of or relating to the study of hydraulics ; "
hydraulic engineer "
Hydraulic \
Hy *
drau "
lic \,
a . [
F .
hydraulique ,
L .
hydraulicus ,
fr .
Gr . ?, ?,
a water organ ; "
y `
dwr water ?
flute ,
pipe .
See {
Hydra }.]
Of or pertaining to hydraulics ,
or to fluids in motion ;
conveying ,
or acting by ,
water ;
as ,
an hydraulic clock ,
crane ,
or dock .
[
1913 Webster ]
{
Hydraulic accumulator },
an accumulator for hydraulic machinery of any kind .
See {
Accumulator },
2 .
{
Hydraulic brake },
a cataract .
See {
Cataract },
3 .
{
Hydraulic cement },
a cement or mortar made of hydraulic lime ,
which will harden under water .
{
Hydraulic elevator },
a lift operated by the weight or pressure of water .
{
Hydraulic jack }.
See under {
Jack }.
{
Hydraulic lime },
quicklime obtained from hydraulic limestone ,
and used for cementing under water ,
etc .
{
Hydraulic limestone },
a limestone which contains some clay ,
and which yields a quicklime that will set ,
or form a firm ,
strong mass ,
under water .
{
Hydraulic main } (
Gas Works ),
a horizontal pipe containing water at the bottom into which the ends of the pipes from the retorts dip ,
for passing the gas through water in order to remove ammonia .
{
Hydraulic mining },
a system of mining in which the force of a jet of water is used to wash down a bank of gold -
bearing gravel or earth . [
Pacific Coast ]
{
Hydraulic press },
a hydrostatic press .
See under {
Hydrostatic }.
{
Hydraulic propeller },
a device for propelling ships by means of a stream of water ejected under water rearward from the ship .
{
Hydraulic ram },
a machine for raising water by means of the energy of the moving water of which a portion is to be raised .
When the rush of water through the main pipe d shuts the valve at a ,
the momentum of the current thus suddenly checked forces part of it into the air chamber b ,
and up the pipe c ,
its return being prevented by a valve at the entrance to the air chamber ,
while the dropping of the valve a by its own weight allows another rush through the main pipe ,
and so on alternately .
{
Hydraulic valve }. (
Mach .)
(
a )
A valve for regulating the distribution of water in the cylinders of hydraulic elevators ,
cranes ,
etc .
(
b ) (
Gas Works )
An inverted cup with a partition dipping into water ,
for opening or closing communication between two gas mains ,
the open ends of which protrude about the water .
[
1913 Webster ]
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